Development of an Autonomous, Compact, Broadband Acoustic Backscattering System for Remote Characterization of Zooplankton Variability (PART II)

Abstract : The long term goal of this research is to develop autonomous, high-frequency broadband acoustic scattering techniques, appropriate for use on a variety of platforms, including towed, profiled, moored, and mobile platforms that enable the remote characterization of zooplankton distributions on ecologically relevant spatial and temporal scales. The primary objective of the proposed research is to develop, calibrate, and test an autonomous, compact, low-power, high-frequency broadband acoustic backscattering system for remote characterization of zooplankton distributions. Specific objectives for this proposal include: 1) complete the development of second-generation sonar boards, 2) complete the integration of new transducers with the second-generation boards, 3) address remaining noise concerns, 4) develop real-time data downloading and visualization capabilities, and 5) addition of a 2 MHz sonar board and transducer.

[1]  Andone C. Lavery,et al.  Mixing by shear instability at high Reynolds number , 2010 .

[2]  Charles H. Thompson,et al.  Determination of fish size distributions and areal densities using broadband low-frequency measurements , 1996 .

[3]  D. Chu,et al.  Observations of Broadband Acoustic Backscattering From Nonlinear Internal Waves: Assessing the Contribution From Microstructure , 2010, IEEE Journal of Oceanic Engineering.

[4]  Richard H. Love,et al.  Unusual swimbladder behavior of fish in the Cariaco Trench , 2004 .

[5]  Jules S Jaffe,et al.  Classification of live, untethered zooplankton from observations of multiple-angle acoustic scatter. , 2008, The Journal of the Acoustical Society of America.

[6]  Peter L Tyack,et al.  Classification of broadband echoes from prey of a foraging Blainville's beaked whale. , 2008, The Journal of the Acoustical Society of America.

[7]  Peter H. Wiebe,et al.  Acoustical study of the spatial distribution of plankton on Georges Bank and the relationship between volume backscattering strength and the taxonomic composition of the plankton , 1996 .

[8]  Gareth L. Lawson,et al.  Long‐term broadband acoustic observations of zooplankton scattering layers in Saanich Inlet, British Columbia. , 2009 .

[9]  D. Holliday.  Resonance Structure in Echoes from Schooled Pelagic Fish , 1972 .

[10]  Manell E. Zakharia,et al.  Wideband sounder for fish species identification at sea , 1996 .

[11]  M. Trevorrow,et al.  Comparison of multifrequency acoustic and in situ measurements of zooplankton abundances in Knight Inlet, British Columbia. , 2005, The Journal of the Acoustical Society of America.

[12]  Peter B. Ortner,et al.  Biovolume-size spectra of epipelagic zooplankton using a multi-frequency acoustic profiling system (MAPS) , 1993 .

[13]  Tetjana Ross,et al.  Acoustic scattering from double-diffusive microstructure. , 2007, The Journal of the Acoustical Society of America.

[14]  Kelly J Benoit-Bird,et al.  Broadband backscatter from individual Hawaiian mesopelagic boundary community animals with implications for spinner dolphin foraging. , 2008, The Journal of the Acoustical Society of America.

[15]  Peter H. Wiebe,et al.  Acoustically-inferred zooplankton distribution in relation to hydrography west of the Antarctic Peninsula , 2004 .

[16]  S. Nicol,et al.  Krill fisheries: Development, management and ecosystem implications , 1999 .

[17]  Timothy K Stanton,et al.  Use of the distorted wave born approximation to predict scattering by inhomogeneous objects: application to squid. , 2009, The Journal of the Acoustical Society of America.

[18]  Kenneth G. Foote,et al.  Calibration of broadband sonar systems using multiple standard targets , 2008 .

[19]  Dezhang Chu,et al.  Application of pulse compression techniques to broadband acoustic scattering by live individual zooplankton , 1998 .

[20]  Andone C. Lavery,et al.  Laboratory observations of double-diffusive convection using high-frequency broadband acoustics , 2009 .

[21]  Paul G. Fernandes,et al.  An investigation into the zooplankton composition of a prominent 38 kHz scattering layer in the North Sea. , 2005 .

[22]  P. Wiebe,et al.  Sound scattering by several zooplankton groups. I. Experimental determination of dominant scattering mechanisms. , 1998, The Journal of the Acoustical Society of America.

[23]  Andrew S. Brierley,et al.  Acoustic discrimination of Southern Ocean zooplankton , 1998 .

[24]  D. Holliday,et al.  Quantitative zooplankton distributions from multifrequency acoustics , 1990 .

[25]  P. Wiebe,et al.  Determining dominant scatterers of sound in mixed zooplankton populations. , 2007, The Journal of the Acoustical Society of America.

[26]  Dezhang Chu,et al.  Measurements of acoustic scattering from zooplankton and oceanic microstructure using a broadband echosounder , 2010 .

[27]  Peter H. Wiebe,et al.  Estimating the spatial distribution of zooplankton biomass by combining Video Plankton Recorder and single-frequency acoustic data , 1998 .

[28]  Dezhang Chu,et al.  Calibration of broadband active acoustic systems using a single standard spherical target , 2008, OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean.

[29]  Andone C. Lavery,et al.  Acoustic Detection of Oceanic Double-Diffusive Convection: A Feasibility Study , 2010 .

[30]  E. Ona,et al.  An operational system for processing and visualizing multi-frequency acoustic data , 2002 .

[31]  D. Holliday,et al.  Bioacoustical oceanography at high frequencies , 1995 .